Water supply line box



FIG. 1 is a perspective view of the water supply line box of the presentinvention as seen from the left front;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a side elevation view of the left hand side of FIG.2;

FIG. 4 is a side elevation view from the right hand side of FIG. 2;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a rear elevation view thereof.

The broken line showing of a water valve and fasteners in FIG. 1 is forillustrative purposes only and forms no part of the claimed design.

The ornamental design for a water supply line box, as shown anddescribed.